<?php
class Del_View_Helper_Logo 
	extends Zend_View_Helper_ServerUrl
{
	public function logo( $url )
	{
		$serverUrl = str_replace(
			array( 'adm.','backend.' ),
			array( null, null ),
			$this->serverUrl()
		);
		
		return "{$serverUrl}/img/logos/{$url}.gif";			
	}
}